CVE-2021-32723

medium

Description

Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). When Prism is used to highlight untrusted (user-given) text, an attacker can craft a string that will take a very very long time to highlight. This problem has been fixed in Prism v1.24. As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text. Other languages are not affected and can be used to highlight untrusted text.

References

https://www.oracle.com/security-alerts/cpujan2022.html

https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg

https://github.com/PrismJS/prism/pull/2774

https://github.com/PrismJS/prism/pull/2688

Details

Source: Mitre, NVD

Published: 2021-06-28

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium